Our iguana lives in a large cage we built, so it's nice and roomy but there's no good way to hold humidity. And with winter on the way it will be even more difficult.

We had shedding issues with our ball python due to low humidity so we took a large, rectangular plastic container, turned it upside down and cut a hole in the side large enough for the snake to slither inside. Then we placed a damp towel inside and set the container over the area of the heating pad so she had a nice warm, humid area to go to. Worked like a charm!

So we're trying the same with the iguana. I got a large rectangular plastic box, cut out most of one side, set it upside down, put some damp paper towels on the bottom, set her favorite flat rock on the paper towels, and set that over the heating pad area. First night she was inside it, sleeping and she loves it. Her shedding is already looking better!

That's a good idea. Do you know the temperature of the heated surface she lays on? I'm just worried about the "slow burn" effect. I think lots of captive iguanas would benefit from having this spa you put together.

The box is not much bigger than a shoe box as she's a juvenile so she fits inside (except for her tail which she lets hang outside the box). But she's growing fast and she'll outgrow this soon.

The temperature of the rock in the box is really not that warm, which makes me wonder if I need a new heat pad. When I feel the pad it barely feels warm to me. Also, I need to remove the paper towels and use a washcloth or dishrag. The paper towels dry up too quickly.

The trick is to use something that holds moisture long enough to keep the chamber humid, but doesn't dry out too fast, or too slow and lead to mold/mildew.

I hope this works out as it gives her a nice humid place to hang out, but I don't have to provide humidity to the entire enclosure which can tend to amplify the stinkies.